Hidden away in an area of Waterton Lakes National Park, little greyish brown butterflies are now being recognized as a new ...

“I still remember when I walked into the insectary and I saw B. anynana butterflies emerging from their pupa, and I saw the [pure homozygous mutant] phenotype—the whole light brown butterfly—which was ...

The annual migration of monarch butterflies is one of science's great mysteries: millions of monarchs know the correct path ...

The meadow brown butterfly’s Latin name is Maniola or ‘little spirit from hell’. It has been represented as a demon in art. The Greek word psyche means both spirit and butterfly. The Greeks ...

In the heart of Canada's Rocky Mountains, an unassuming yet remarkable butterfly has been quietly flying under our scientific ...

Common Evening Brown: A medium-sized greyish-brown butterfly with large eyespots on its wings to ward off predators. Unlike most butterflies, this one mostly comes out at night.

A year-round resident of New Mexico's high mountain meadows, the highly imperiled Sacramento Mountains checkerspot butterfly relies wholly on the integrity of its remarkably limited range. This ...